Iranian Journal of Mechanical Engineering Transactions of ISME

Iranian Journal of Mechanical Engineering Transactions of ISME

The effects of nanofluid in mixed heat transfer in localized ventilated with ventilation compartment

Authors
ALIREZA SHEIBANI 1
Seid Amir Abbas Oloomi 2
1 pm
2 Assistant Professor, Department of Mechanical Engineering, Yazd Branch, Islamic Azad University, Yazd, Iran
Abstract
Nanofluids are suspensions of nanoparticles in fluids that show significant enhancement of their properties at modest nanoparticle concentrations. Nano fluid is a smart fluid. The flow and heat transfer of a mixture of two different types of Nanofluids (water-alumina and water - copper oxide) in a localized ventilated compartment will be investigated by a finite volume method for three different situations. The results will be presented in the form of flow lines, constant temperature, and Nusselt numbers. Inlet fluid is at cold temperatures and walls with outlet ports in extreme conditions. The studied parameters include input fluid intensity (500≥Re≥100), Riley number effects (105≥Ra≥103), Nanofluid concentration (0.05≥ Φ ≥ 0). The numerical results show that, for example, in the first position, in Reynolds 100 and Riley 103 in pure water state, the mean Nusselt was as much as 7.7 and reached 8.61 in the concentration of 0.33. Which will increase by 17.78% to Nusselt.
Keywords
Numerical solution
mixture convective
nano fluid
Nusselt number
Local heating

Subjects

[1]      Singh, A. K., "Thermal Conductivity of Nanofluids", Defence Science Journal, Vol. 58, pp. 600-607, (2008).
 
[2]      Xuan, Y., and Roetzel, W., "Conceptions for Heat Transfer Correlation of Nanofluids", International Journal of Heat and Mass Transfer, Vol. 43, 2000, pp. 201–213, (2009).
 
[3]      Khanafer, K., Vafai, K., and Lightstone, M., "Buoyancy-driven Heat Transfer Enhancement in a Two Dimensional Enclosure Utilizing Nanofluids", International Journal of Heat and Mass Transfer, Vol. 46, pp. 3639–3653, (2003).
 
[4]      Jou, R. Y., and Tzeng, S. C., "Numerical Research of Nature Convective Heat Transfer Enhancement Filled with Nanofluids in Rectangular Enclosures", Int. Commun. Heat Mass Transfer, Vol. 33, pp. 727-736, (2010).
 
[5]      شیخ­زاده،ق.ع. و محمودی،م.، "مطالعه عددی جابه جایی آزاد نانوسیال در یک محفظه مربعی با وجود اجزای سرد و گرم روی دیواره­های عمودی آن"، نشریه استقلال، سال ٣٠، شماره ١، ص ٧٩-٩٦، تابستان (1390).
 
[6]      Abu–Nada, E., and Chamkha, A.J., "Mixed Convection Flow in a Lid Driven Square Enclosure Filled with a Nanofluid", European Journal of Mechanics - B/Fluids, Vol. 29, pp. 472–482, (2010).
 
[7]      Shahi, M., Mahmoudi A. H., and Talebi, F., "Numerical Study of Mixed Convective Cooling in a Square Cavity Ventilated and Partially Heated from the Below Utilizing Nanofluid, International Communications in Heat and Mass Transfer", Vol. 37, pp. 201–213, (2009).
 
[8]      Fereidoon, A., Saedodin, S., HemmatEsfe, M., and Noroozi, M.J., "Evaluation of Mixed Convection in Inclined Square Lid Driven Cavity Filled with Al2O3/water Nanofluid", Engineering Applications of Computational Fluid Mechanics, Vol. 7, pp. 55–65, (2013).
 
[9]      Hwang, K.S., Lee, J.H., and Jang, S.P., "Buoyancy-driven Heat Transfer of Water-based Al2O3 Nanofluids in a Rectangular Cavity", International Journal of Heat and Mass Transfer, Vol. 50, pp. 4003-4010, (2007).
 
[10]  Santra, A. K., Sen, S., and Chakraborty, N., "Study of Heat Transfer Augmentation in a Differentially Heated Square Cavity using Copper-water Nanofluid", Int. J. Thermal Sciences, Vol. 47, pp. 1113-1122, )2008(.
 
[11]  Ogut, E. B., "Natural Convection of Water-based Nanofluids in an Inclined Cavity with a Heat Source," Int. J. Thermal Sciences, Vol. 48, pp. 2063-2073, )2009(.
 
[12]  علیزاده، محمدرضا، "بررسی عددی جریان و انتقال حرارت نانوسیال در یک محفظه تهویه شده با چشمه داخلی"، پایان نامه کارشناسی ارشد، دانشگاه یزد، (1390).
 
[13]  G. De Vahl Davis, "Natural Convection of Air in a Square Cavity, a Benchmark Numerical Solution", International Journal of Numerical Methodology Fluids, pp. 249–264, (1983).
Iranian Journal of Mechanical Engineering Transactions of ISME
Volume 20, Issue 4 - Serial Number 53
Fluid Mechanics and Heat Transfer
Winter 2019
Pages 78-96

  • Receive Date 29 December 2017
  • Revise Date 23 April 2018
  • Accept Date 10 March 2019